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No. 60,650. Patented Oct. l8, II898. A. R. PENPRASE. SEPARATUR.

(Application filerl Apr. 1, 1897.).

(No Model.)

INVENTOR WITNESSES OYO-LITHO WASHINOYON, D, c.

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i ATENT FFICE.

ALBERT R. PENPRASE, OF DULUTH, MINNESOTA, ASSIGNOR TO BYRON G. SEGOG,JOHN F. SEGOG, AND BASIL D. BROWN, OF SAME PLACE.

S EPARATO R.

SPECIFICATION forming part of Letters Patent No. 612,650, dated October18, 1898.

Application filed April 1, 1897. Serial No. 630,323. (No model) To (LZZwhom it may concern:

Be it known that I, ALBERT R. PENPRASE, a citizen of the United States,residing at Duluth, in the county'of St. Louis and State of Minnesota,have invented certain new'and useful Improvements in Separators; and Ido hereby declare the following to be afull, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to separators, and more particularly to that classof separators which are adapted to separate grain. V

v The objects of my invention are, first, to secure compactness and tosubject the material being treated to as many sieving operations aspossible in such compacted space, and, second, to thoroughly separatethe material into three compartments in the novel manner as will behereinafter described and claimed.

The invention consists of certain novel constructions, combinations, andarrangements of parts, all of which will be hereinafter par ticularlydescribed and claimed.

In the accompanying drawings, Figure 1 represents a vertical section ofmy improved separator. Fig. 2 represents a vertical section of the same,extending from front to rear of the separator at right angles to theplane of the section in Fig. 1; and Fig. 3 represents a horizontalcross-section of the device.

A in the drawings represents a casing; B, inner diverging screens; B,outer converging screens; 0, inner converging floors; 0, outer divergingfloors, and E a feed-hopper.

The casing A is preferably of a generally rectangular shape and providedwith a door A upon its front side, through which access may be had tothe interior 'of the separator for the purpose of cleaning the same orrectifyin g any difliculty which may occur therein.

The feed-hopper E is situated at the top of the separator, the lowerdischarging end of the said hopper extending into the separator. Thedischarge of said hopper is adapted to be regulated by the jaws cc,pivoted to the walls of the hopper and adapted when swung toward eachother to partially or entirely close the lower end of the hopper.Pivotally mounted in the separator is a lever e, which is operativelyconnected at one end with each' the side of the separator and isprovided with v a handle at its lower end. An upward movement of the rod6 causes the end of the lever c connected to the pivoted or toggle linkse to move downwardly, which causes the said links and the pivoted jawse, to which the links are pivoted, to move toward each other and cometogether at the lower end. of the feed-hopper and close the same. Adownward pull upon the rod 6 causes a reverse movement of the pivotedlever, links, and jaws and separates the jaws for the passage ofmaterial into the separator.

It will be seen from the above description that the dischargeof thehopper may be regulated by moving the operating-rod e up or down,thereby opening or closing the jaws e e to a greater or less extent,according to the amount of grain it is desired to admit to theseparator.

Just below the feed-hopper E are arranged oppositely-divergingcoarse-wire screens B preferably formed simply of parallel Wires, which,while they allow the grain to drop through, collect straw or any largetrash and convey it to either side,where it may drop into the dust ordirt compartment. The grain drops through the screens B and falls uponthe uppermostpair of inner diverging screens B B,which meet in themiddle of the separator. Connected to the lowerends of the upper pair ofinner diverging screens is a pair of inner converging floors, which donot meet at their lower ends, but form a central passage for the descentof dust. To the lower ends of the floors 0 are connected another pair ofconverging screens B, and to the lower ends of these screens areconnected another pair of converging floors 0, and the construction andarrangement are carried out to the extent desired. Outside of theinwardly-converging floors O and a suitable distance away from the sameto form a passage for the descent of the grain a pair of convergingscreens B are arranged, and to'the lower ends of these screens divergingfloors C are connected, which are parallel with the inner divergingscreens B, and this arrangement is continued to the exdiverging screensB are connected by vertical screens W, as shown in the drawings.

About midway the height of the separator and between two of theoppositely-inclined dust-floors O is an incline floor 0, which isadapted to catch all the dust or foreign substances dropping down thecentral passageway and direct them through an opening f in therear wallof the casing A into the compartment F. The passage-ways on each side ofthe separator are also in communication with said compartment F by meansof openings f f in the sides of the casing A, the dust, straw, andforeign substances dropping down said passage-ways being directedthrough said openings f f by the dust-floors C c, which are justopposite the same, the

' said floors being extended to meet the sides of the casing A for thispurpose. Below this point in the separator the grain is further screenedand separated into two grades, the best grade being deposited by thelast pair of oppositely-inclined screens B B into an inclined trough b,which extends through the front of the casing A and delivers the cleangrain into any desired receptacle. The rest of the grain and screeningspass a part down the sides of the easing into a compartment A in thelower end of the separator and a part into the samereceptacle through anopening formed at the rear of the casing A, between the last pair ofdust-floors O, and an inclined floor c, similarto the floors 0, beingsecured in place between the said dust-floors to more effectually securea proper discharge of the said grain. The floor of this compartment Apreferably converges toward the center, at which point is an aperture ordoor adapted to be closed by a slide a. The contents of the compartmentA may be discharged into any suitable receptacle by pulling out theslide a.

It will be observed that the series of screens and floors form on eachside a zigzag passageway for the grain, each screen being adapted todeliver its contents to the next oppositelyinclined screen below and thedust-floors being adapted to catch the screenings from each screen andconvey them to a proper place and prevent dust from falling onto thescreen below.

The screens are preferably arranged at right angles to each other, forby this arrangement I am enabled to pass the grain over a great numberof screens in a small space, and the angle gives a sufficient incline tomake the grain fall easily.

While I have described my invention as adapted to the separation ofgrain, I do not wish to limit myself to that use, for it is apparentfrom the above description that my device may be used for separatingore, coal, and crushed rock or similar material without departing fromthe spirit of my invention.

It will be apparent that the material to be separated will be deliveredin three different grad es-that discharged into the compartment F beingone, that discharged into the compartment A being another, and thatdischarged through the trough being the third.

The screens below the openings leading into the compartment A arepreferably of alarger mesh than the screens above, and they may begraded to suit the separation desired.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a separator and grader, the combinanation with a suitable casing,of two inner diverging Screens, two inner converging floors connectingthe said inner screens, two outer converging screens parallel with thesaid 0011-,

verging floors, two outer diverging floors connecting the said outerconverging screens and parallel with the inner diverging screens, theinner floors and screens being so arranged as to discharge particles ofdirt or waste material through a space centrally between them into asuitable receptacle, and the outer diverging floors to discharge wastematerial at the sides of the casing, the arrangement of the inner andouter floors also preventing the dust from rentering the grain and alsoforming with the screens two zigzag passages for the descent of thegrain, and an inclined floor located at a suitable point in the centraldustchute for conducting the dust to the dustcompartment, the saiddust-compartment also connecting with the side dust passages or chutes,one set of the outer diverging floors being extended to meet the sidesof the outer casing to form a screenings-compartment below the same andprevent the further descent of the dust into said compartment and alsodirect the dust in the side passages to the dust-compartment, the meshof the screens below the said extended divergent dust-floors in the sidedust-passages being larger than the mesh of the screens above saidfloors, and forming a grain-grader which permits small grain orscreenings to pass through the large mesh, the construction andarrangement being such that the dust is conveyed to one compartment,screenings to another compartment, and good grain to a thirdcompartment, substantially as described.

2. In a separator and grader, the combination with a suitable casing, oftwo inner diverging screens, two inner converging floors connecting thesaid inner screens, two outer converging screens parallel with the saidconverging floors, two outer diverging floors connecting the said outerconverging screens and parallel with the inner diverging screens, the

inner floors and screens being so arranged as to discharge particles of"dirt or waste material through a space centrally between them into asuitable receptacle, and the outer diverging floors to discharge wastematerial at the sides of the casing, the arrangement of the inner andouter floors also preventing the dust from rentering the grain, and alsoforming with the screens two zigzag passages for the descent of thegrain, a centrally-arranged inclined -floor located at a suitable pointin the central dust-chute for conduct-,

ing the dust to the dust-compartment, the said dust-compartment alsoconnecting with the side dust passages or chutes, one set of the outer,diverging floors being extended to meet the sides of the outer casing toform a the centrally-discharged screenings into the. screenings-compartment, the construction and arrangement being such that the dustis conveyed to one compartment, screenings to another compartment, andgood grain to a third compartment, substantially as described.

3. In a separator, the combination with a suitable casing, ofafeed-hopper, a feed-regulating device attached to said hopper,comprising two jaws e e pivoted to the walls of the hopper at the lowerend of the same, links pivoted to said jaws, a lever pivoted in thecasing and secured at one end to said links and an operating-rodarranged outside the casing and connected to the other end of the leverfor operating the same to partially or entirely close or open the lowerend of the hopper, a series of inner diverging screens, the top pairhaving its ridge or comb in line with and directly beneath the line offeed from the hopper, and a series of inner converging floors connectingsaid screens, a series of outer converging screens parallel with theinner diverging screens, the inner floors and screens being so arrangedas to discharge particles of dirt or waste material through a spacecentrally between them into a suitable receptacle, and the outerdiverging floors to discharge waste material at the sides of the casing,the. arrangement of the inner and outer floors also preventing the dustfrom reentering the grain and also forming with the screens two zigzagpassages for the descent of the grain, substantially as described.

4:. A separator and grader comprising an outer casing provided with adust-compartment, a screenings-compartment, and a goodgrain compartment,the dust compartment being arranged exteriorly of said casing andsurrounding the same on three sides, two sets of zigzagly and parallellyarranged screens and floors arranged in, the casing as described,forminga central dust-passage and side dustpassages, and adownwardly-inclined floor arranged in the central dust-passage for conducting the dust into the dust-compartment, one set of diverging floorsbelow said centrally-arranged floor being extended to the sides of thecasing and forming a screeningscompartment below them and preventing thedescent of the dust into said screenings-compartmen-t, the-large grainpassing into a separate compartment, substantially as described.

5. In a separator, the combination with a suitable casing, of afeed-hopper, and ateedregulating device attached to said hopper,

regulated, and increased and diminished as desired, substantially asdescribed.

In testimony whereof Ihereunto affix my signature inpresence of twowitnesses.

ALBERT R. PENPRASE.

Witnesses:

JAMES '1. "VVATSON, 13. A. CURRIER.

